Alcohol-burner.



No. 821,406. PATENTED MAYQZ, 1906.

J; H. ERNST.

ALGO'HOL' BURNER, APPLICATION FILED JULY 15, 1905.

v- UNITED STATES PAEENT OFFICE.

JQHNH. ERNST, oruaw Y R N. AssIoNo-s To SILVER & COMPANY, OF BROOKLYN, N. Y., A CORPORATION OF NEW YORK.

ALCOHOL-BURNER.

Specification of Letters Patent.

ratented May 22, 1906.

To all whom it may concern.-

Be it known that 1, JOHN H. ERNST, a citi-.

Zen of the United States of America, and a resident of the borough of Brooklyn, New

' York city, in the State of New York, have invented a new and useful Improvement in AllcoholeBur'ners, 'of which the following is a specification;

This invention relates to those alcoholburners in which provision is made for regulating the heat-and for extinguishing the flame at will, and primarily to t ose burners which are designed and adapted to beused wholly without any wick or absorbent; so

that when the flame is put out the unconsumed spiritmay be decanted and kept for future use. t

The leading object of the present invention is the construction of an alcohol-burner for chafing-dishes and the like adapted to have all the characteristics above stated. Other objects are to supply the vaporwith an abundance of oxy on 111 sucha way as to render the burner e ective as soonas it is lighted, torovide the burner with an airsupply regulhtor having a handle 1b W]J1Gh the burner as awhole may be hand ed, and

, to facilitate holding the burner-bowl against turning with said regulator.

The invention consists in certam novel combinations of parts hereinafter described and claimed.

.11 Sheet of the drawings accompanies the specification as part thereof.

Figure 1 is a side view of a small tripodjstove embodying the improved burner as t appears without its flame-contracting ring and extinguisher.

Fig. 2 is a top view projected from Fig. 1. Fig. 3 is a top view showing the flame-contracting ung and eX- tinguisher with the former n its operatlve position. Fig. 4 is a top view showing the extinguisher in place. Fig. 5 is a pers BCtI VB view of the flame-contracting ring an extin guisher detached; and Fig. Grepresents a section on the line A B, Fig. -2, through the burner proper removed from the tr1 0d.

Like reference characters refer to ikeparts 'in all the figures. The burner-bowl a m erably and conveniently round in shape, as

represented in Figs. 2, 3, and 4, and includes lower and upper portions 1 and 2 of suitable all its forms is pref-- perforate panlike portion adapted to hold the supply of alcohol, and the upper portion 2 is provided near the to of the burner with a circumferential series oFair-admitting holes 3, separated from each other b interspaces 4 of greater width than the indlvidual holes: Said upper portion 2 .of the burner-bowl is embraced by a circumferential air-supply regulator I), having airadmitting holes 3 and inters secs 4,- corresponding with those of the bow and provided with a horizontallyprojecting handle 5 as means for turning said regulator circumferentially to reduce or out off the admission of air; The burner-bowie is further constructed with a circumferential bead 6 at about midrheight, and immediately below this bead is preferably. and conveniently provided with embossed projections 7,

(one or more,) and is thus adapted to be held while in use within a simple tripod or like portable frame c, having a horizontal ring 8,-

adapted to embrace the cup below said bead 6, andprovided with notches 7 corresponding with and. adapted to admit said projections 7 on the burner-bowl, as in Fig. .1, so that the burner-bowl can be held against turning by means of the frame 0 when the airsuppljygi regulator b is turned. A To facilitate so ho ing the burner-bowl by means of the frames, the latter may be constructed with a handle 0, inte ral with one of the legs of the tripod; but this is not considered essential. I

The top ofthe improved burner is provided with a suitable flame-orifice 9, which is preferably and conveniently central and round, as shown, and surrounded by an upturned lip 10, and this lip 10 is embraced by a flamecontracting ring (1 when it is desired to use a flame of less diameter or preliminary to extinguishing the flame, and a flame-extinguishing cap e is fitted to the top of said fiame-contracting ring d and is loosely connected therewith-as, for example, by a short length of chain 11.

As shown in Fig. 6, the upper and lower portions 1 and 2 of the burner-bowl a are two. distinct pieces, and a circumferential joint formssaid circumferential bead 6. The up per portion 2 is further constructed with a circumferential bead 12, parallel to said bead 6. The body of the air-supply regulator b in the form of a perforated band embraces the burner-bowl a between said beads 6 and 12,

- from the flame-ori and the ends of this band are connected with each other and with the metallic stem of a wooden or equivalent cold handle 5 by rivets 13.

Afterv supplying the lower portion of the burner-bowl 1 with alcohol through the flameorifice 9 and with the latter wide open the air-admitting holes 3 are fully o ened by turning the air-supply regulator b, i need be, and the spirit is 'then ignited. The relatively cold air entering the air-admitting holes 3 tends to descend relatively to the hot vapor and mingles with the vapor in a highly effective manner, within the upper portion of the burner-bowl, so as to keep the flame well supplied with oxy en. The flame' issues ice 9, which ordinarily may remain wide open. To reduce the flame as to diameter, the flame-contracting ringd is laced in position around the flame-orifice ip 10, as in Fig. 3, and the burner may be used in this condition with or without turning the air-supply regulator to reduce the supply of air. hen the flame is to be extinguished, the air-supply regulator, b is turned so as to'fully cut ofi' the supply of air through the air-admitting holes 3, and with the flame-contracting rin d in position the extinguishing-cap e is app ied to said ring d, as in Fig. 4, which cuts off the supply ofair from above and immediately extinguishes thei flame. After permitting the burner to cool the air-supply regulator may be moved so as to open the air-admitting holes 3, and any alcohol remaining in the' burner-bowl ma be poured out through these holes so as to e' saved. In this and other manipulations of the burner as a whole the handle 5 of the air-supply regulator 12 may be used as the v which to manipulate them.

handle of the whole burner. A cap similar to said extinguishing-cape, but of sufficiently greater diameter, may obviously be applied directly to the flame-orifice lip 10 without the intervention of the flame-contracting ring d. Said ring (1 and cap 3, or either of them, may be provided with handles by Said flame-,contracting ring (I may be hinged or otherwise attached to the top of the burner-bowl, and

other like modifications will suggest themselves to those skilled in the art.

Having thus described said improvement, I claim as my invention and desire to patent under this specification In an alcohol-burner, the combination with a supporting-tripod of a burner-bowl consisting of two pieces united by a circumferential bead by wlnch'the burner 15 supported in its tripod, the uppermost piece havinga flame-orifice, a circumferential bead about its upper edge and a circumferential series of air-admitting holes separated from each other by interspaces of greater width than the individual holes and located between the two circumferential beads, means for preventing the burner from rotating in the tripod, a band located between and confined in place by said beads and provided with air-holes and interspaces corresponding with said air-holes and interspaces in the uper portion of the bowl, and a handle to which the ends of said band are secured, substantially as hereinbefore specified.

JOHN H. ERNST.

Witnesses:

GUY W. SEE-DON, WH. HEIssENBUTTEL. 

